Improvement in revolving harrow



Ny PETERS, PHDT `my invention, I will proceed to describe its 'nited tant @sind Qlhiilir.

Letters Patent No. 90,628, dated, .Time 1, 1869.

IMPROVEMENT IN REVOLVING HARROW.

The Schedule referred to in these Letters Patent and making part of the same.

f' To all. whom 'it may concern.-

Be it known that I, CALEB BATES, of Kingston, in the county .of Plymouth, and State of Massachusetts, have nveutedccrtain new and useful Improvements in Revolving Harrows and I do hereby declare that the following is a full and exact description thereof', reference being had -to the atcompanyingl drawings, and to the letters of reference marked thereon.

To enable others skilled in the art to make and use nature, construction, and use. .l Y

The nature of my invention consists- First, in combining, with the tooth of a barrow, a paddle, which is so constructed, lthat while it serves to canse thc harrows to revolve, it also serves to clear the tooth of any accumulation of earth, weeds, Snc.

Second, iii-combining, with` the axlev upon which the narrow revolves, a bent knife, which extends radially nearly to the ijrst tootlnthen bends and extends downward, parallel with the tooth, thus servingr to clear the inner row of teeth from earth, Ste., that may have gathered.

Third, in so combining audfarranging with the frame of a harrow, two hars, so connected, that when fixed in one position, the hal-row being turned upside down, they will serve as a V-shaped scraper, or levcller, but, by

being placed in another position, they serve as runners, for the purpose of more easily transporting the harrow. Drmc'ings. Figure 1 is a perspective view; Figure 2 is al section of parts. I construct my harrow as follows: A is the' centre, or dranght-bar, to which is directly attached one, F F F, of the revolving harrows.

B and B are side-bars, hinged, at their front end, to

the draught-bar A, and confined to the rear cross-bar O, by pins, one of which, b, is shown in tig. 1.

This cross-bar C is provided with a series of holes, into any of which the pins b may enter, so that the side-bars B B may be adjusted so as to give diiferent widths to the harrow.

To each of these axles a bent knife,`L, is attached,

'as shown in fig. 2. This knife-being stationary, and `arranged as shown, serves to clearthe inner row of teeth as they pass it.

The paddle M is so hung, that, in one part of the revolution of the harrow, it will serve as a bnttress, and thus offer sufficient resistance to cause the barrow to revolve always in one direction, since this paddle will offer no resistance in that part of the revolution of the harrow, in which it is behind the tooth.

This action of the paddle is more fully described in patent granted to me, March 26, 1867. "A

The improvement which I have made in this paddle consists in its form, and in providing it with a slot,

vas shown, so that at each hali revolution of the harrow, it is thrown back so far, that the edges of the slot pass the tooth, and',I together with the tooth, forni shears, and thus cnt and remove the accumulations.

As this motion is limited, the paddlelvill still perform its tinictiou as a buttress. y

N and Nv are two long bars, or planks, connected, near their front end, to the frame, by toggle-pivots It It', while the rear end is confined by suitable stops V,

and hy hooks, or any convenient device.

\Vhen these bars N N' are'fastened in the position represented in ti". 1, and thel barrow isturned upside down, they together form a V-shaped scraper, or leyeller; but when the bars are brought parallel to each other, as represented by the dotted lines N N', and

fixed by pills P P', then they form runners, upon which the harrow may he transported from place to place.

That I claim as my invention, and desire to secure by Letters Patent, isv i 1. The paddle M, in combination'with the tooth K, working, as described, and for the nrpose set forth.

2, The bent knife L, in combintion with theaxle II and tooth K', as described, and for the purpose set orth.

3. In combination with the barrow, the bars N N', when arranged to operate substantially' as described, and for the purpose set forth. l

CALEB BATES.

Witnesses:

FRANK G. PARKER, A. HUN BERRY. 

